Skip to main content

Rossby Financial, LCC

Position in CME — Cme Group Inc.

CIK 2056510 MELBOURNE, FL

Position in CME

as of Jun 30, 2026 · filed Aug 4, 2026
Position Value
$175,118
-$31,036 QoQ
Shares Held
793
+13.6% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.08%
of 13F equity value
Holder Rank
#1,397
of 1,680 holders
Holding Since
Mar 2025
6 quarters on record
Voting authority Sole 0% Shared 0% None 100%

Common Shares in CME Over Time

Shares Held

Position Value (USD)

Derivatives in CME

reported options exposure · as of Mar 31, 2026
CallValue
$0
CallShares
0
PutValue
$2,805,825
PutShares
9,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Financial Data & Stock Exchanges

Financial Services · as of Jun 30, 2026

Rossby Financial, LCC holds $1,374,449 across 11 Financial Data & Stock Exchanges names. CME ranks #3 (12.7% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 CME
Cme Group Inc.
This page
793 $175,118

All Filings in CME

Export CSV
7 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $175,118 793
2026-03-31 $206,154 698
2026-03-31 $2,805,825 9,500
2025-12-31 $75,370 276
2025-09-30 $57,820 214
2025-06-30 $50,714 184
2025-03-31 $61,016 230